Search Results - "Nádaždy, Vojtech"

Mapping the Density of States Distribution of Organic Semiconductors by Employing Energy Resolved–Electrochemical Impedance Spectroscopy by Bässler, Heinz, Kroh, Daniel, Schauer, Franz, Nádaždy, Vojtech, Köhler, Anna

“…Although the density of states (DOS) distribution of charge transporting states in an organic semiconductor is vital for device operation, its experimental…”
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Highly Efficient Antioxidant F- and Cl-Doped Carbon Quantum Dots for Bioimaging by Marković, Zoran M, Labudová, Martina, Danko, Martin, Matijašević, Danka, Mičušík, Matej, Nádaždy, Vojtech, Kováčová, Mária, Kleinová, Angela, Špitalský, Zdeno, Pavlović, Vladimir, Milivojević, Dušan D, Medić, Mina, Todorović Marković, Biljana M

“…The addition of heteroatoms to pristine carbon quantum dots (CQDs) change their structure and optical properties. In this study, fluorine (F)- and chlorine…”
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Unifying Charge Generation, Recombination, and Extraction in Low‐Offset Non‐Fullerene Acceptor Organic Solar Cells by Karki, Akchheta, Vollbrecht, Joachim, Gillett, Alexander J., Selter, Philipp, Lee, Jaewon, Peng, Zhengxing, Schopp, Nora, Dixon, Alana L., Schrock, Max, Nádaždy, Vojtech, Schauer, Franz, Ade, Harald, Chmelka, Bradley F., Bazan, Guillermo C., Friend, Richard H., Nguyen, Thuc‐Quyen

“…Even though significant breakthroughs with over 18% power conversion efficiencies (PCEs) in polymer:non‐fullerene acceptor (NFA) bulk heterojunction organic…”
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Optical absorption study of P3HT:PCBM blend photo-oxidation for bulk heterojunction solar cells by Müllerová, Jarmila, Kaiser, Michal, Nádaždy, Vojtech, Šiffalovič, Peter, Majková, Eva

“…•The P3HT:PCBM photo-oxidation is analyzed by difference absorbance spectra.•The decrease of absorbance features corresponding to excitonic states was…”
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Unifying Energetic Disorder from Charge Transport and Band Bending in Organic Semiconductors by Karki, Akchheta, Wetzelaer, Gert‐Jan A. H., Reddy, Gollapalli Narayana Manjunatha, Nádaždy, Vojtech, Seifrid, Martin, Schauer, Franz, Bazan, Guillermo C., Chmelka, Bradley F., Blom, Paul W. M., Nguyen, Thuc‐Quyen

“…Characterizing the density of states (DOS) width accurately is critical in understanding the charge‐transport properties of organic semiconducting materials as…”
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What is the Binding Energy of a Charge Transfer State in an Organic Solar Cell? by Athanasopoulos, Stavros, Schauer, Franz, Nádaždy, Vojtech, Weiß, Mareike, Kahle, Frank‐Julian, Scherf, Ullrich, Bässler, Heinz, Köhler, Anna

“…The high efficiencies reported for organic solar cells and an almost negligible thermal activation measured for the photogeneration of charge carriers have…”
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Correlation between Molecular Stereostructure, Film Microstructure, and Electronic Structure of Polyfluorene and Fluorene Based Alternating Copolymers F8BT and PFO–DBT by Gmucová, Katarína, Konôpka, Martin, Vegso, Karol, Bokes, Peter, Nádaždy, Vojtech, Váry, Tomáš

“…Identifying key parameters that can help control molecular ordering in the active layer of high-performance organic devices is an important topical issue…”
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Electrochemical Spectroscopic Methods for the Fine Band Gap Electronic Structure Mapping in Organic Semiconductors by Gmucová, Katarína, Nádaždy, Vojtech, Schauer, František, Kaiser, Michal, Majková, Eva

“…Functionality of organic photonic devices is markedly influenced by the electronic band structure of the used materials. An easy and quick determination of the…”
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Thickness Effect on Structural Defect-Related Density of States and Crystallinity in P3HT Thin Films on ITO Substrates by Nádaždy, Vojtech, Gmucová, Katarína, Nádaždy, Peter, Siffalovic, Peter, Vegso, Karol, Jergel, Matej, Schauer, František, Majkova, Eva

“…We report on a study of thickness effect on the formation of structural defect-related density of states (DOS) in the band gap of…”
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An Impedance Study of the Density of States Distribution in Blends of PM6:Y6 in Relation to Barrierless Dissociation of CT States by Kroh, Daniel, Athanasopoulos, Stavros, Nádaždy, Vojtech, Kahle, Frank‐Julian, Bässler, Heinz, Köhler, Anna

“…Abstract In an endeavor to understand why the dissociation of charge‐transfer (CT) states in a PM6:Y6 solar‐cell is not a thermally activated process,…”
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Thermally‐Induced Degradation in PM6:Y6‐Based Bulk Heterojunction Organic Solar Cells by Alam, Shahidul, Aldosari, Haya, Petoukhoff, Christopher E., Váry, Tomáš, Althobaiti, Wejdan, Alqurashi, Maryam, Tang, Hua, Khan, Jafar I., Nádaždy, Vojtech, Müller‐Buschbaum, Peter, Welch, Gregory C., Laquai, Frédéric

“…Thermally induced degradation of organic photovoltaic devices hinders the commercialization of this emerging PV technology. Thus, a precise understanding of…”
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Relating Chain Conformation to the Density of States and Charge Transport in Conjugated Polymers: The Role of the β -phase in Poly(9,9-dioctylfluorene) by Shi, Xingyuan, Nádaždy, Vojtech, Perevedentsev, Aleksandr, Frost, Jarvist M., Wang, Xuhua, von Hauff, Elizabeth, MacKenzie, Roderick C. I., Nelson, Jenny

“…Charge transport inπ-conjugated polymers is characterized by a strong degree of disorder in both the energy of conjugated segments and the electronic coupling…”
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Thiophene-centered azomethines: Structure, photophysical and electronic properties by Tokárová, Zita, Maxianová, Petra, Váry, Tomáš, Nádaždy, Vojtech, Végh, Daniel, Tokár, Kamil

“…We present the synthesis and structure characterization of three novel symmetrical azomethines 3a-c derived from 2,5-diamino-thiophene-3,4-dicarbonitrile…”
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The influence of surface roughness on the presence of polymorphs and defect states in P3HT layers by Kotorová, Soňa, Váry, Tomáš, Chlpík, Juraj, Toušek, Jiří, Toušková, Jana, Rutsch, Radka, Végső, Karol, Šiffalovič, Peter, Nádaždy, Vojtech, Majková, Eva, Cirák, Július

“…[Display omitted] •Two polymorphs in P3HT layer occur on rough ITO in comparison to smooth c-Si surface.•Sub-bandgap defect states above the HOMO in P3HT on…”
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Influence of localized plasmon resonances on the redox reaction kinetic by Gmucová, Katarína, Benkovičová, Monika, Nádaždy, Vojtech, Majková, Eva

“…As is well-known, redox reactions taking place on the electrode coated with plasmonic nanostructures influence the plasmon resonances. However, very little is…”
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Correlation between electrical parameters and defect states of polythiophene:fullerene based solar cell by Kaiser, Michal, Nádaždy, Vojtech, Šiffalovič, Peter, Ivančo, Ján, Majková, Eva

“…We investigated the degradation of the poly(3-hexylthiophene) (P3HT):(6,6)-phenyl C61-butyric acid methyl ester (PCBM) organic solar cells (OSCs) induced by…”
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Influence of thermal annealing on microstructure, energetic landscape and device performance of P3HT:PCBM-based organic solar cells by Alam, Shahidul, Petoukhoff, Christopher E, Jurado, José P, Aldosari, Haya, Jiang, Xinyu, Váry, Tomáš, Nasser, Hamza Al, Dahman, Amr, Althobaiti, Wejdan, Lopez, Sandra P Gonzalez, Alsufyani, Wejdan, Müller-Buschbaum, Peter, Nádaždy, Vojtech, Hoppe, Harald, Laquai, Frédéric

“…Abstract Thermal annealing alters the morphology of organic donor-acceptor bulk-heterojunction thin films used in organic solar cells. Here, we studied the…”
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Absolute energy levels in nanodiamonds of different origins and surface chemistries by Miliaieva, Daria, Djoumessi, Aurelien Sokeng, ermák, Jan, Kolá ová, Kate ina, Schaal, Maximilian, Otto, Felix, Shagieva, Ekaterina, Romanyuk, Olexandr, Pangrác, Ji í, Kuli ek, Jaroslav, Náda dy, Vojtech, Stehlík, Št pán, Kromka, Alexander, Hoppe, Harald, Rezek, Bohuslav

“…Nanodiamonds (NDs) are versatile, broadly available nanomaterials with a set of features highly attractive for applications from biology over energy harvesting…”
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Nanodiamonds as Charge Extraction Layer in Organic Solar Cells: The Impact of the Nanodiamond Surface Chemistry by Sokeng Djoumessi, Aurelien, Sichwardt, Anastasia, Miliaieva, Daria, Čermák, Jan, Schaal, Maximilian, Otto, Felix, Stehlík, Štěpán, Kuliček, Jaroslav, Nádaždy, Vojtech, Fritz, Torsten, Kromka, Alexander, Rezek, Bohuslav, Schubert, Ulrich S., Hoppe, Harald

“…Diamond nanoparticles so‐called nanodiamonds (NDs) have recently experienced raising scientific interest due to interesting optical and electronic properties,…”
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Towards new multifunctional coatings for organic photovoltaics by Šiffalovič, Peter, Jergel, Matej, Benkovičová, Monika, Vojtko, Andrej, Nádaždy, Vojtech, Ivančo, Ján, Bodík, Michal, Demydenko, Maxym, Majková, Eva

“…A cost-effective procedure for hydrophobization of commercial silica nanoparticles by octadecyltrichlorosilane or trichloro (1H,1H,2H,2H-perfluorooctyl) silane…”
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